THR EXCLUSIVE

Also joining the cast are Laz Alonso, Loretta Devine and Romeo Miller.

"Broom" revolves around the clash of two black families from opposite ends of the socioeconomic spectrum meeting for the first time during a weekend wedding in Martha's Vineyard.

Bassett will play Patton's mother, an heiress and a pillar of the Washington elite. Miller plays Patton's cousin, a senior at Yale. Alonso will play Patton's love interest. Shooting begins in early summer in Nova Scotia.

Arlene Gibbs and Elizabeth Hunter wrote the script, based on a story by Hunter. Bishop T.D. Jakes, Curtis Wallace, Tracey Edmonds, Glendon Palmer and Hunter are producing.

Bassett just wrapped shooting on "Green Lantern," playing Dr. Amanda Waller in the Martin Campbell-helmed Warner Bros. tentpole. She is casting her directorial debut, "United States," which is slated to go before cameras in the fall. She is repped by Gersh and Lighthouse Entertainment

Alonso, repped by ICM and Thruline, appeared in "Avatar" and has the remake of "Straw Dogs" in the can. Devine, repped by Innovative Artists, appeared in the April release "Death at a Funeral"; rapper-actor Miller, repped by Fortitude and Adam Robinson, toplined the 2004-06 Nickelodeon series "Romeo!"